1. Division of Haematology, Oncology and Stem Cell Transplantation; Faculty of Medicine; University of Freiburg; Freiburg Germany
2. Clinical Trials Unit; University of Freiburg Medical Centre; Freiburg Germany
3. Institute for Medical Biometry and Statistics; Faculty of Medicine and Medical Centre - University of Freiburg; Freiburg Germany
4. Department of Haematology; Haga Hospital; The Hague The Netherlands
5. EORTC Headquarters; Brussels Belgium
6. Institute for Laboratory Diagnostics; University of Freiburg; Freiburg Germany